Install Blowers on my 355 Vortecs...
12-29-2013, 09:32 AM
#1
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Install Blowers on my 355 Vortecs...
...hypothetically...what would the result be?
The internals are all forged..blocks are 4: bolt main bearing cap. I'm running 10:1 compression now so I know I would need larger chamber heads to get the compression down about 2 points and a cam change.
So if went with something like a Marine Vortech:http://www.summitracing.com/parts/vo...make/chevrolet
...could I expect 550 horsepower/550# TQ ?
Just brainstorming on a rainy Sunday....
The internals are all forged..blocks are 4: bolt main bearing cap. I'm running 10:1 compression now so I know I would need larger chamber heads to get the compression down about 2 points and a cam change.
So if went with something like a Marine Vortech:http://www.summitracing.com/parts/vo...make/chevrolet
...could I expect 550 horsepower/550# TQ ?
Just brainstorming on a rainy Sunday....
12-29-2013, 11:00 AM
#5
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Horsepower and Torque numbers totaling 1100 +/- move towards the "Century" mark in that hull and I think it is structurally prepared to handle it.
Last edited by sprink58; 12-29-2013 at 11:05 AM.
12-29-2013, 11:39 AM
#6
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I would be all about these! http://www.whipplesuperchargers.com/...sp?ProdID=1164 This is from a build in HOTROD mag.
"To demonstrate the potential of this bigger screw supercharger, Art Whipple bolted one of the new 2100R, 2.1-liter-per-revolution blowers on a 355 small-block Chevy. Testing took place at Ken Duttweiler’s dyno in Saticoy, California. According to the folks at Whipple, the engine (“Nothing special, just something we had lying around”) is based on a 0.030-over 350 Bow Tie block, a Velasco steel crankshaft that uses Carrillo steel connecting rods, 7.5:1 compression forged JE flat-top pistons and single-moly rings. The heads are a set of Brodix aluminum -8 heads with a midsize 185cc intake port fitted with 2.02/1.80-inch stainless valves. The larger exhaust valve is used to help scavenge the increased cylinder pressure. Valve action is controlled by an Erson hydraulic roller cam featuring 234 degrees at 0.050 duration and 0.510-inch lift for both the intake and exhaust using Erson 1.5:1 roller rockers.
The Whipple blower for this test was bolted to the carb flange of a stock Edelbrock Torker II Dominator intake manifold, which then supported a Carburetor Shop 1050 Holley Dominator carburetor. Completing the engine was a set of Hooker 1¾-inch headers flowing through a pair of Borla stainless-steel 2½-inch mufflers. Ray Zeller of Whipple Industries built the engine and helped with mild tuning while on the dyno.
After the engine was checked out for proper jetting and timing and the 100 octane VP unleaded race gas was added to the fuel delivery system, Duttweiler was ready to pull the handle on the Digilog dyno. We’ve witnessed plenty of blown motors make gobs of horsepower, but this one really surprised us. By the time Duttweiler and Zeller were through tuning, this 355 cranked out a tire-melting 705 lb-ft of torque at 3,900 rpm and an awesome 632 horsepower at a low 5,400 rpm. These are killer big-block power numbers from an otherwise mild 355. While we did not perform a normally aspirated power test, this engine would easily be capable of 425 to 450 horsepower, which means the bolt-on Whipple blower was worth a stout 40 percent power increase.
Looking at the cam specs, a dual-pattern cam and perhaps greater valve lift would have added more power, but the real story is the ease with which the power was obtained. The Brodix cylinder head certainly helped make this awesome power, but the bottom line is Whipple has made a powerful statement with this new 2100R screw supercharger. If nothing else, it will certainly put the screws to your no-power blues."
"To demonstrate the potential of this bigger screw supercharger, Art Whipple bolted one of the new 2100R, 2.1-liter-per-revolution blowers on a 355 small-block Chevy. Testing took place at Ken Duttweiler’s dyno in Saticoy, California. According to the folks at Whipple, the engine (“Nothing special, just something we had lying around”) is based on a 0.030-over 350 Bow Tie block, a Velasco steel crankshaft that uses Carrillo steel connecting rods, 7.5:1 compression forged JE flat-top pistons and single-moly rings. The heads are a set of Brodix aluminum -8 heads with a midsize 185cc intake port fitted with 2.02/1.80-inch stainless valves. The larger exhaust valve is used to help scavenge the increased cylinder pressure. Valve action is controlled by an Erson hydraulic roller cam featuring 234 degrees at 0.050 duration and 0.510-inch lift for both the intake and exhaust using Erson 1.5:1 roller rockers.
The Whipple blower for this test was bolted to the carb flange of a stock Edelbrock Torker II Dominator intake manifold, which then supported a Carburetor Shop 1050 Holley Dominator carburetor. Completing the engine was a set of Hooker 1¾-inch headers flowing through a pair of Borla stainless-steel 2½-inch mufflers. Ray Zeller of Whipple Industries built the engine and helped with mild tuning while on the dyno.
After the engine was checked out for proper jetting and timing and the 100 octane VP unleaded race gas was added to the fuel delivery system, Duttweiler was ready to pull the handle on the Digilog dyno. We’ve witnessed plenty of blown motors make gobs of horsepower, but this one really surprised us. By the time Duttweiler and Zeller were through tuning, this 355 cranked out a tire-melting 705 lb-ft of torque at 3,900 rpm and an awesome 632 horsepower at a low 5,400 rpm. These are killer big-block power numbers from an otherwise mild 355. While we did not perform a normally aspirated power test, this engine would easily be capable of 425 to 450 horsepower, which means the bolt-on Whipple blower was worth a stout 40 percent power increase.
Looking at the cam specs, a dual-pattern cam and perhaps greater valve lift would have added more power, but the real story is the ease with which the power was obtained. The Brodix cylinder head certainly helped make this awesome power, but the bottom line is Whipple has made a powerful statement with this new 2100R screw supercharger. If nothing else, it will certainly put the screws to your no-power blues."
Last edited by 79formula; 12-29-2013 at 11:42 AM.
12-29-2013, 12:43 PM
#8
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So...here is a plausible scenario:
I build a pair of "Stump Pullers" out of what I already have...stumble on a 353 FasTech with no power or drives that is a theft recovery for south of $10K. I move my "packages" to the 353 and run a quick leg in February's Miami to Key West FPC Poker Run with sustained running speeds in the 85-90 MPH realm...pull up to the docks at Gilberts...open the hatch. I move back a bit and open a chair, pop a cold one and enjoy the show as mouths fly open, jaws drop and cameras flash...staring in dis-belief at twin SBC's with blowers almost lost in the bilge of that 353 FasTech....the same FasTech that paced 75 miles at 90 MPH with six figured machines...some of which have more money tied up in the transportation costs to get to the run than I do in my entire rig!!
:
That would be fun!!
I build a pair of "Stump Pullers" out of what I already have...stumble on a 353 FasTech with no power or drives that is a theft recovery for south of $10K. I move my "packages" to the 353 and run a quick leg in February's Miami to Key West FPC Poker Run with sustained running speeds in the 85-90 MPH realm...pull up to the docks at Gilberts...open the hatch. I move back a bit and open a chair, pop a cold one and enjoy the show as mouths fly open, jaws drop and cameras flash...staring in dis-belief at twin SBC's with blowers almost lost in the bilge of that 353 FasTech....the same FasTech that paced 75 miles at 90 MPH with six figured machines...some of which have more money tied up in the transportation costs to get to the run than I do in my entire rig!!
:That would be fun!!
12-29-2013, 12:48 PM
#9
Very true. One of the things I had in mind when i built the propulsion package that I have now was what future boat it would transfer to. There is a physical limit that the 255 straight 24* dead-rise deep vee can achieve top speed wise...but if I consider moving the entire package to say...a 292 FasTech hull...then the paradigm shifts rapidly.
Horsepower and Torque numbers totaling 1100 +/- move towards the "Century" mark in that hull and I think it is structurally prepared to handle it.
Horsepower and Torque numbers totaling 1100 +/- move towards the "Century" mark in that hull and I think it is structurally prepared to handle it.
12-29-2013, 07:45 PM
#10
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So...here is a plausible scenario:
I build a pair of "Stump Pullers" out of what I already have...stumble on a 353 FasTech with no power or drives that is a theft recovery for south of $10K. I move my "packages" to the 353 and run a quick leg in February's Miami to Key West FPC Poker Run with sustained running speeds in the 85-90 MPH realm...pull up to the docks at Gilberts...open the hatch. I move back a bit and open a chair, pop a cold one and enjoy the show as mouths fly open, jaws drop and cameras flash...staring in dis-belief at twin SBC's with blowers almost lost in the bilge of that 353 FasTech....the same FasTech that paced 75 miles at 90 MPH with six figured machines...some of which have more money tied up in the transportation costs to get to the run than I do in my entire rig!!:
That would be fun!!
I build a pair of "Stump Pullers" out of what I already have...stumble on a 353 FasTech with no power or drives that is a theft recovery for south of $10K. I move my "packages" to the 353 and run a quick leg in February's Miami to Key West FPC Poker Run with sustained running speeds in the 85-90 MPH realm...pull up to the docks at Gilberts...open the hatch. I move back a bit and open a chair, pop a cold one and enjoy the show as mouths fly open, jaws drop and cameras flash...staring in dis-belief at twin SBC's with blowers almost lost in the bilge of that 353 FasTech....the same FasTech that paced 75 miles at 90 MPH with six figured machines...some of which have more money tied up in the transportation costs to get to the run than I do in my entire rig!!
:That would be fun!!
